Chlorinated Dioxetane Substrate Formulation for Direct Wide-Range Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current immunoassays face challenges in efficiently detecting analytes with significant concentration variations, requiring sample dilution and prolonging test cycles, increasing costs and interference.
Innovation Solution
A chemiluminescent substrate solution comprising chlorinated dioxetane compounds with a spiroadamantane substituent, fluorescein, and a water-soluble polymeric quaternary ammonium salt, providing a wide linear detection range of 30,000 to 60,000 photons/second, enabling precise detection without dilution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sample dilution is performed to detect analytes with significant concentration variations, then detection precision is improved, but test cycle duration increases and costs increase
Solution Approach 1:
The patent changes the chemical parameters of the substrate solution by incorporating specific surfactants (Tween 20, Tween 80, or their mixture) and optimizing the pH range (9.0-10.0) with buffer systems. This allows the chemiluminescence reaction to maintain wide linearity (10^5 fold concentration range) without requiring sample dilution, thus reducing test cycle duration while preserving detection precision across varying analyte concentrations
Solution Approach 2:
The patent uses composite substrate solutions combining chemiluminescent substrates (AMPPD, CDP-STAR, or CSPD) with specific surfactants (Tween 20, Tween 80) and buffer systems. This composite formulation enhances the detection system's ability to handle wide concentration ranges directly, eliminating the need for dilution steps and reducing overall test time while maintaining precision
2Measurement precision
If sample dilution is performed to detect analytes with significant concentration variations, then detection precision is improved, but detection costs increase
Solution Approach 1:
By optimizing the chemical parameters of the substrate solution (pH 9.0-10.0, specific surfactant concentrations), the patent enables direct detection of undiluted samples across a 10^5 fold concentration range. This eliminates the need for additional reagents and materials required for dilution, reducing detection costs while maintaining precision
Solution Approach 2:
The composite substrate solution formulation with surfactants and buffers enables direct detection without dilution, reducing the consumption of reagents and materials associated with dilution steps, thereby lowering detection costs while preserving measurement precision
3Object-affected harmful factors
If sample dilution is performed to detect analytes with significant concentration variations, then interference is reduced, but detection complexity increases
Solution Approach 1:
The patent optimizes substrate solution parameters (pH 9.0-10.0, surfactant addition) to maintain wide linearity and reduce interference effects directly in undiluted samples. This simplifies the detection procedure by eliminating dilution steps and associated complexity, while the surfactant and buffer system help minimize interference from matrix components
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution simplifies detection procedures, reduces costs, and enhances precision by allowing direct detection of both low and high-concentration samples without the need for dilution, maintaining high sensitivity and wide linearity.
Implementation Method 1
Chemiluminescence refers to a phenomenon that in the process of a chemical reaction, a specific substance absorbs a portion of chemical energy and reaches an excited state, and the energy released in the process of returning to a ground state is released in the form of photons, resulting in luminescence.
Implementation Method 2
The chemiluminescent substrate solution is chemiluminescent through the catalysis of an alkaline phosphatase.
Data Source
Figure 1A~1B
Figure 1C~1D
Figure 2A~2B
AI summary
The present disclosure relates to a chemiluminescent substrate solution and a chemiluminescence detection method. The chemiluminescent substrate solution includes a chemiluminescent substrate, a fluorescein, and a water-soluble polymeric quaternary ammonium salt, wherein the chemiluminescent substrate is selected from chlorinated dioxetane compounds with a spiroadamantane substituent. The chemiluminescent substrate solution has a wider linear detection range.